Door for hot-blast stoves and furnaces.



` I. KENNDVYaf DOOR PGR HUT BLST STUUR@ NH FRNACES.

Mmmwmm'- mmm fing. 1. am. l

wi-mmm@ INVENTUM No., 817,070, PATENTBD APR. 4s, 1906.

LKBNNEDY.

'DOOR FOR HOT BLAST STOVES AND FURNIGES.

APYLIGATION FILED FEB.\1,1905,

3 SHEETS-SHEET 2.

PATENTED APR. 3

No, Q -17,070.

J. KENNEN Doon .ma HOT BLAST sToVEs AND FURNAUES.

APPLICATION FILED FEB'. 1. 1905.

MTN msm i Ulli l it. N it. it' N E Dit (it if fii it B U lt tft, il" itlAppiiceticn filed To all whowt 1'? il/wry concern:

Be it known that i., ULIAN irmtfrf Yitteburg, Allegheny county, iijeniiM have invented. n new and ueeiuiln nr ment in Doors for HoteBieetr.:tovee eno. i1 neces, of which the following is 'e inli, clem, anderect description, reference being het. to the eccornpstnying drawings,forming port oi this speciiicetion, in which Figure l is e irontelevation of e furnace door constructed in accordance with my invention.Fi i'. 2 in e top plan view showing the door pert y in. section, andFig. 3 is :i veium tical central. section. l

The :purpose of my invention is to provide e doortor liothlest stovenand furnaces which isetlepted to he easily o ened enel closed end.which. when in place Wil tit tightly. My im ,rovernent if; of im.ortence because of the effi- I ciency with which the door performs itsfunctiene enti the" cese with which yit can be op- @retest ,in thedrawinge, 2 represents the fornacedoor, which is preferably medecirculer in outline and ifrhingetl by e. pivet-pin 3 to e. carrier-treme3', which preferably comprises :time 4, t', t, and t. The erin lt"carries roliere 5 (i, which run upon e track 7,v consist! ing,preferably, oi' e steel bei which extentie adjacent to the urnncecpeninj which ie to be closed. The' irme 4, 4;', an 4:a nre ro vided. withopen clots or sockets Wale-h open in the emile direction and when thedoor cloned ere adapted to tit bolts 9, lt), and 11. These project'outwardly from the fumnce-cesng enti are provided with nuts 12,13, endi4, which when the door ie in place fire ontiie exterior iof the door:tod heer egeinet the seine. These holte 9h10, end it have :squaredportions t5, which. fit eli-einst l flat shoulders .in the door treme,engl time hold the bolts from. tilrning. When 1t 1s de- Sired to closethe door, the freine is moved on the track 7, so as to bring the socketset the ends of thearme 4 4 e into connecticn with their respectiveh'olte, and the mit 11i is thon turned on its bolt, so es to prese thefreine in .Wardly end to force the door tightly wrninst its settt. Whenthe door is to be openei'l, this nut is loosened, so es to tree thecrine t lt. et

` from engagement therewith, end the 'treme i.. rient. eeen in. tiefste.

carrying the door een thym he moved on the trecli 7 eo es to exposeowning. he porpoee of the hinge 3 te to gi e the door tiexibility, sothat it con always he brought firmly to ite seat.

The mit .it is provided with o. washer 11i', which is instale taperingon ite inner surface to engage e correepomlingiy-tepereti eoclqet in.the erin 4l., en that when the initie screwed. iii-lilly against the crmit wilt eo.tonmticniiy center itself in the proper peei lon The encewith which tiic door een be treed end moved :mtl the cieeeneee withwhich. it tits and seols the tlcoi-openiiig constitute :1d-- ventngeeol" the invention.

The forni ol' the invention may hc'inoriiiied in many 'Withoutdeparture-1, iroin the fleini tion thereof, Whiei'l given in the claims,since.

VVhet .i chtini in 1.. A furnace-floor having e elitiiIL, treme, seidfreine being ilcirihly connecte to the door substantially' et itscenter, smid flexible connection constituting wpivotol support;substentialiy es described.

2. A. turnece-tl-oor having e sliding freine, seid freine having open.Sockets to receive fue" tening deviene-hy which the door iepressed toite sent; euhetiintiolly :te tleecrihetl.

3. Afurnecedoor hitting iiiii'enie to which it le hinged, seid freinebeing n'iouiited on mevofnle hearings end having open siete toreceive'fastening devices; euhstentielly es described. It. .A fm'necemdoorhaving e freine to which it ie hinged, said lrzirnc being mounted onroll ere on n trziclt, and. menne noting directly on the treme toindirectly press the door to its sect; Substantially described. A

5. A inrimceloor having; ti eiitliii freine to which thc doei"'.tieiiihly eonnccteii, end n holtv projecting; .i o the iurircecesingfor Securing the loer, citi heitprovi-iledwith a not having o. ring tentin the traine; Subetentinliy ne deicriheti.

ln testimony whercoiE if :my henri.

he ve hereunto set

